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Spectroscopic Elucidation of First Steps of Supported Bimetallic Cluster Formation
Author(s) -
Kulkarni Apoorva,
Gates Bruce C.
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200904877
Subject(s) - bimetallic strip , decarbonylation , cluster (spacecraft) , extended x ray absorption fine structure , chemistry , degree of unsaturation , crystallography , spectroscopy , photochemistry , absorption spectroscopy , catalysis , organic chemistry , physics , computer science , programming language , quantum mechanics
Initial steps of bimetallic Ru–Os cluster formation on MgO in the presence of H 2 are analyzed by EXAFS and IR spectroscopy. RuOs bond formation takes place after decarbonylation of Ru 3 clusters and subsequently, at higher temperatures, of Os 3 clusters to generate coordinative unsaturation (see scheme).